Felix Klain
type: MusicGroup
popularity: 26
followers: 1639
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e003f66e5bb2d8c71e7c26eaa69fc2325c1764ed869c292f67b660cfcdbb59a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cb80a3b-57fa-41a6-a985-93db00cfdd88.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cb80a3b-57fa-41a6-a985-93db00cfdd88.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1cb80a3b-57fa-41a6-a985-93db00cfdd88
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7e003f66e5bb2d8c71e7c26eaa69fc2325c1764ed869c292f67b660cfcdbb59a","name":"Felix Klain","registered_at":"2026-06-11T13:44:46Z","symbol":"NIM0038683","token_address":"0xef63a3480043351e9801943aa796119e653bf986","type":"artist","uuid":"1cb80a3b-57fa-41a6-a985-93db00cfdd88"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e003f66e5bb2d8c71e7c26eaa69fc2325c1764ed869c292f67b660cfcdbb59a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cb80a3b-57fa-41a6-a985-93db00cfdd88.json and https://artists.proofprofile.net/proofs/artist/1cb80a3b-57fa-41a6-a985-93db00cfdd88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0x7e003f66e5bb2d8c71e7c26eaa69fc2325c1764ed869c292f67b660cfcdbb59a","name":"Felix Klain","registered_at":"2026-06-11T13:44:46Z","symbol":"NIM0038683","token_address":"0xef63a3480043351e9801943aa796119e653bf986","type":"artist","uuid":"1cb80a3b-57fa-41a6-a985-93db00cfdd88"}
album: Confianza
  type: MusicAlbum
  date published: 2021-12-02
  track: Confianza
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194167
    explicit: false
    by artist: Felix Klain
    in album: Confianza
      type: MusicAlbum
      date published: 2021-12-02
    isrc code: QMDA72148620
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T19:45:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0e569dc1bbf75e5f73da98fc23b90ca987cc59b859ec716e7974dc719f15b9ca
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957750
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957750
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72148620
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T20:39:38Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e569dc1bbf75e5f73da98fc23b90ca987cc59b859ec716e7974dc719f15b9ca. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72148620.
      date published: 2026-07-12T20:39:38Z
    audio: Confianza
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.991
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.903
      additional property: Energy
        type: PropertyValue
        value: 0.69
      additional property: Speechiness
        type: PropertyValue
        value: 0.105
      additional property: Acousticness
        type: PropertyValue
        value: 0.714
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.016
      additional property: Liveness
        type: PropertyValue
        value: 0.084
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.405
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.532
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: BORRACHA
  type: MusicAlbum
  date published: 2022-05-26
album: BAILA BONITO
  type: MusicAlbum
  date published: 2023-07-27
album: 3.0
  type: MusicAlbum
  date published: 2024-05-31
album: La Cura
  type: MusicAlbum
  date published: 2025-02-20
album: SOXE
  type: MusicAlbum
  date published: 2025-07-10
album: SOXE
  type: MusicAlbum
  date published: 2025-07-10